diff --git a/build-constraints.yaml b/build-constraints.yaml
index 4ccf0f64..6aef32bf 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2158,6 +2158,7 @@ packages:
         # requires servant-server-0.5
         #- dixi < 0.6.9.0
         - giphy-api < 0.3
+        - lackey < 0.3.0
 
         # https://github.com/fpco/stackage/issues/1291
         - hjsmin < 0.2